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Finding the Fourth Proportional to 63,351.30, 86,959.04 and 56,020.53

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Solution

The fourth proportional to 63,351.30, 86,959.04 and 56,020.53 is: 76,896.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,351.30 : 86,959.04 = 56,020.53 : x
  2. Step 2: Convert to fraction form
    63,351.30/86,959.04 = 56,020.53/x
  3. Step 3: Cross multiply
    63,351.30x = 86,959.04 × 56,020.53
  4. Step 4: Simplify right side
    63,351.30x = 4,871,491,228.99
  5. Step 5: Solve for x
    x = 4,871,491,228.99/63,351.30
  6. Step 6: Final answer
    x = 76,896.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.